Development of silicon drift detectors for synchrotron radiation sources

Synchrotron radiation facilities are essential interdisciplinary research platforms, with performance and efficiency closely tied to detector technology. To meet future requirements, especially the High Energy Photon Source (HEPS), we have conducted key technological research and development on single-element and array Silicon Drift Detectors (SDDs). The research and testing were conducted at the Platform of Advanced Photon Source Technology (PAPS). The test results indicate that the single-element SDD has achieved an energy resolution of 143 eV@5.9 keV (−35 °C), and the 20-unit array-SDD has reached an energy resolution of better than 300 eV@13.96 keV (−40 °C).